I would try an alternative treatment for passing a gallstone, if that is the problem, instead of surgery. This is one report I found. An Internet search could find other suggestions.

Gallbladder Surgery Alternative

The Lancet recently reported the use of one quart of pure apple juice for one week. After one full week of the apple juice one cup of olive oil was used just before going to bed. The person was instructed to lay on their left side during the night. A high dose of magnesium can be used to facilitate the removal of the stones.

Lancet December 18/25, 1999 354:2171

http://www.mercola.com/2000/jan/9/g...alternative.htm

Kent